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/*
* Copyright (c) 2008, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package anttasks;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
import java.io.Writer;
import java.util.EnumSet;
import java.util.Properties;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Task;
/**
* Task to allow the user to control langtools tools built when using NetBeans.
*
* There are two primary modes.
* 1) Property mode. In this mode, property names are provided to get values
* that may be specified by the user, either directly in a GUI dialog, or
* read from a properties file. If the GUI dialog is invoked, values may
* optionally be set for future use.
* 2) Setup mode. In this mode, no property names are provided, and the GUI
* is invoked to allow the user to set or reset values for use in property mode.
*/
public class SelectToolTask extends Task {
enum ToolChoices {
NONE(""),
JAVAC("javac"),
JAVADOC("javadoc"),
JAVAP("javap"),
JSHELL("jshell");
String toolName;
boolean bootstrap;
ToolChoices(String toolName) {
this(toolName, false);
}
ToolChoices(String toolName, boolean bootstrap) {
this.toolName = toolName;
this.bootstrap = bootstrap;
}
@Override
public String toString() {
return toolName;
}
}
/**
* Set the location of the private properties file used to keep the retain
* user preferences for this repository.
* @param propertyFile the private properties file
*/
public void setPropertyFile(File propertyFile) {
this.propertyFile = propertyFile;
}
/**
* Set the name of the property which will be set to the name of the
* selected tool, if any. If no tool is selected, the property will
* remain unset.
* @param toolProperty the tool name property
*/
public void setToolProperty(String toolProperty) {
this.toolProperty = toolProperty;
}
/**
* Set the name of the property which will be set to the execution args of the
* selected tool, if any. The args default to an empty string.
* @param argsProperty the execution args property value
*/
public void setArgsProperty(String argsProperty) {
this.argsProperty = argsProperty;
}
/**
* Specify whether or not to pop up a dialog if the user has not specified
* a default value for a property.
* @param askIfUnset a boolean flag indicating to prompt the user or not
*/
public void setAskIfUnset(boolean askIfUnset) {
this.askIfUnset = askIfUnset;
}
@Override
public void execute() {
Project p = getProject();
Properties props = readProperties(propertyFile);
toolName = props.getProperty("tool.name");
if (toolName != null) {
toolArgs = props.getProperty(toolName + ".args", "");
}
if (toolProperty == null ||
askIfUnset && (toolName == null
|| (argsProperty != null && toolArgs == null))) {
showGUI(props);
}
// finally, return required values, if any
if (toolProperty != null && !(toolName == null || toolName.equals(""))) {
p.setProperty(toolProperty, toolName);
if (argsProperty != null && toolArgs != null)
p.setProperty(argsProperty, toolArgs);
}
}
void showGUI(Properties fileProps) {
Properties guiProps = new Properties(fileProps);
JOptionPane p = createPane(guiProps);
p.createDialog("Select Tool").setVisible(true);
ToolChoices tool = (ToolChoices)toolChoice.getSelectedItem();
toolName = tool.toolName;
toolArgs = argsField.getText();
if (defaultCheck.isSelected()) {
if (toolName.equals("")) {
fileProps.remove("tool.name");
fileProps.remove("tool.bootstrap");
} else {
fileProps.remove("tool.bootstrap");
fileProps.put("tool.name", toolName);
fileProps.put(toolName + ".args", toolArgs);
}
writeProperties(propertyFile, fileProps);
}
}
JOptionPane createPane(final Properties props) {
JPanel body = new JPanel(new GridBagLayout());
GridBagConstraints lc = new GridBagConstraints();
lc.insets.right = 10;
lc.insets.bottom = 3;
GridBagConstraints fc = new GridBagConstraints();
fc.gridx = 1;
fc.gridwidth = GridBagConstraints.NONE;
fc.insets.bottom = 3;
JPanel toolPane = new JPanel(new GridBagLayout());
JLabel toolLabel = new JLabel("Tool:");
body.add(toolLabel, lc);
EnumSet toolChoices = toolProperty == null ?
EnumSet.allOf(ToolChoices.class) : EnumSet.range(ToolChoices.JAVAC, ToolChoices.JAVAP);
toolChoice = new JComboBox<>(toolChoices.toArray());
ToolChoices tool = toolName != null ? ToolChoices.valueOf(toolName.toUpperCase()) : null;
if (toolName != null) {
toolChoice.setSelectedItem(tool);
}
toolChoice.addItemListener(e -> {
ToolChoices tool1 = (ToolChoices)e.getItem();
argsField.setText(getDefaultArgsForTool(props, tool1));
if (toolProperty != null)
okButton.setEnabled(tool1 != ToolChoices.NONE);
});
fc.anchor = GridBagConstraints.EAST;
GridBagConstraints toolConstraint = new GridBagConstraints();
fc.anchor = GridBagConstraints.WEST;
toolPane.add(toolChoice, toolConstraint);
body.add(toolPane, fc);
argsField = new JTextField(getDefaultArgsForTool(props, tool), 40);
if (toolProperty == null || argsProperty != null) {
JLabel argsLabel = new JLabel("Args:");
body.add(argsLabel, lc);
body.add(argsField, fc);
argsField.addFocusListener(new FocusListener() {
@Override
public void focusGained(FocusEvent e) {
}
@Override
public void focusLost(FocusEvent e) {
String toolName = ((ToolChoices)toolChoice.getSelectedItem()).toolName;
if (toolName.length() > 0)
props.put(toolName + ".args", argsField.getText());
}
});
}
defaultCheck = new JCheckBox("Set as default");
if (toolProperty == null)
defaultCheck.setSelected(true);
else
body.add(defaultCheck, fc);
final JOptionPane p = new JOptionPane(body);
okButton = new JButton("OK");
okButton.setEnabled(toolProperty == null || (toolName != null && !toolName.equals("")));
okButton.addActionListener(e -> {
JDialog d = (JDialog) SwingUtilities.getAncestorOfClass(JDialog.class, p);
d.setVisible(false);
});
p.setOptions(new Object[] { okButton });
return p;
}
Properties readProperties(File file) {
Properties p = new Properties();
if (file != null && file.exists()) {
Reader in = null;
try {
in = new BufferedReader(new FileReader(file));
p.load(in);
in.close();
} catch (IOException e) {
throw new BuildException("error reading property file", e);
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
throw new BuildException("cannot close property file", e);
}
}
}
}
return p;
}
void writeProperties(File file, Properties p) {
if (file != null) {
Writer out = null;
try {
File dir = file.getParentFile();
if (dir != null && !dir.exists())
dir.mkdirs();
out = new BufferedWriter(new FileWriter(file));
p.store(out, "langtools properties");
out.close();
} catch (IOException e) {
throw new BuildException("error writing property file", e);
} finally {
if (out != null) {
try {
out.close();
} catch (IOException e) {
throw new BuildException("cannot close property file", e);
}
}
}
}
}
String getDefaultArgsForTool(Properties props, ToolChoices tool) {
if (tool == null)
return "";
String toolName = tool.toolName;
return toolName.equals("") ? "" : props.getProperty(toolName + ".args", "");
}
// Ant task parameters
private boolean askIfUnset;
private String toolProperty;
private String argsProperty;
private File propertyFile;
// GUI components
private JComboBox toolChoice;
private JTextField argsField;
private JCheckBox defaultCheck;
private JButton okButton;
// Result values for the client
private String toolName;
private String toolArgs;
}